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Belt of Orion Region (EDQ86 @ f5.6).jpg
This frames the three stars of the Belt of Orion (from L to R: Alnitak, Alnilam, and Mintaka) surrounded by a rich assortment of nebulas. The most famous is the dark Horsehead Nebula, Barnard 33, at lower left below Alnitak, and protruding into the magenta emission nebula IC 434, aka Orion's Dagger.
Above Alnitak is the orangish Flame Nebula (aka the Tank Tracks), but formally catalogued as NGC 2024.
Many other smaller reflection nebulas dot the field, most carrying designations from the Index (IC) Catalogue from IC 423 through IC 435. The field is also immersed in dark, dusty nebulosity glowing a dull brown. Right of the Horsehead is the multiple star system Sigma Orionis, with four stars resolvable in a small telescope.
The bright blue stars in the centre of the field are part of the large, loose star cluster Collinder 70.
Technical:
This is a stack of 11 x 5 minute exposures with the Astro-Tech EDQ86 apo refractor with its 0.8x Reducer for an f-ratio of f/5.6 and a field of 4.2º by 2.8º. The camera was the stock (not astro-modified) Canon R5 at ISO 800, chosen this night for the R5's high resolution 45 Mp sensor in testing this telescope. No filter was employed at the telescope. I brought out the nebulosity with the aid of luminosity-masked curves adjustments, and the application of the Photokemi Nebula Filter action and Nik Color EFX Detail Exractor.
Taken from home on January 22, 2025, the same day the telescope arrived. There is a matching image with a tighter field of view taken at f/7 with this scope.
Above Alnitak is the orangish Flame Nebula (aka the Tank Tracks), but formally catalogued as NGC 2024.
Many other smaller reflection nebulas dot the field, most carrying designations from the Index (IC) Catalogue from IC 423 through IC 435. The field is also immersed in dark, dusty nebulosity glowing a dull brown. Right of the Horsehead is the multiple star system Sigma Orionis, with four stars resolvable in a small telescope.
The bright blue stars in the centre of the field are part of the large, loose star cluster Collinder 70.
Technical:
This is a stack of 11 x 5 minute exposures with the Astro-Tech EDQ86 apo refractor with its 0.8x Reducer for an f-ratio of f/5.6 and a field of 4.2º by 2.8º. The camera was the stock (not astro-modified) Canon R5 at ISO 800, chosen this night for the R5's high resolution 45 Mp sensor in testing this telescope. No filter was employed at the telescope. I brought out the nebulosity with the aid of luminosity-masked curves adjustments, and the application of the Photokemi Nebula Filter action and Nik Color EFX Detail Exractor.
Taken from home on January 22, 2025, the same day the telescope arrived. There is a matching image with a tighter field of view taken at f/7 with this scope.
- Copyright
- © Alan Dyer/AmazingSky.com
- Image Size
- 8192x5464 / 24.6MB
- www.amazingsky.com
- Contained in galleries
- NGC/IC Objects, My Latest, Nebulas
